Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Space-Time M-ary Orthogonal Walsh Sequence Keying

시공간 M-ary 직교 Walsh 수열 변조

  • 김정창 (포항공과대학교 전자컴퓨터공학부) ;
  • 전경훈 (포항공과대학교 전자컴퓨터공학부)
  • Published : 2009.03.25
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Abstract

In this paper, we propose ST-MWSK (space-time M-ary orthogonal Walsh sequence keying) employing MWSK which does not require channel estimation at the receiver. The computational complexity for the noncoherent ML (maximum-likelihood) detector of ST-MWSK is significantly reduced compared to that of ST-FSK (ST frequency-shift keying). Also, the performance of ST-MWSK is virtually identical to that of ST-FSK.

본 논문에서는 수신기에서 채널 추정을 필요로 하지 않는 MWSK (M-ary orthogonal Walsh sequence keying)를 적용한 ST-MWSK (space-time MWSK)를 제안한다. ST-MWSK의 noncoherent ML (maximum-likelihood) 검출기의 계산 복잡도는 기존의 ST-FSK (ST frequency-shift keying) 방식에 비해 크게 줄어든다. 또한 ST-MWSK는 ST-FSK와 거의 동일한 성능을 나타낸다.

Keywords

References

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